摘要
请看下列一道试题：Many provinces such as Sichuan, Hubei, Anhuiand Jiangxi were flooded in this summer,＿＿＿made us realize the importance of water conservancy（水利）.A．that B．what C．which D．it 分析正确答案为c。本题考查的是非限制性定语从句关系词的使用以及句子类型方面的综合知识。依据横线前面的逗号可以推断本句是非限制性定语从句。
